[MVRC] Mantium Virtual Racecar Challenge 2016

[LVDH]

Do not worry about the signs on the monitoring surfaces. They depend on the orientation of the stl file you used.

[RicME85]

Excellent. That clears up so much

[LVDH]

If it is now clear for you that is great. But these comments and questions are all good. I will make sure to improve the software so it is more clear.

[CAEdevice]

Hi LDVH, I have question about the mesh setting. I could wait tomorrow and see the the dict files but I was wondering if to define a high res surface on a specific region of the floor/diffuser would change anything or the settings for the underfloor already consider it as high res region.

Edit: I read the rulebook and it seems that to add a high res surfaces is allowed only for wings

[variante]

So, I'm trying to use WFlow.
So far I've run the test case, and I've got this:
I guess the run was successful.

Now, I've got no idea how to go on and run an actual case with my car...

The "ReadMe" says that I need to "open the command window and go to the location of MantiumWFlow_MVRCed". Which command window?

Also, is there a particular location where I should place the WFlow files (such as the "shared directory" of the virtual machine)? or even the Desktop is good enough?

Sorry for these questions, but I'm a total noob with this stuff. I whish there was a step by step guide...

[CAEdevice]

Hi Variante, there should be a "readme.txt" file in the WFlow package with the instruction to create a folder structure with all the STLs required by WFlow to generate the OF case.

You can find an example above (I was aswering a question by Ric) with a link to an "input_file" folder structure with the STLs of my "opensource car". I am sure you will not be too interested in the geometry

[variante]

Yeah, I've got that folder structure. What shall I do with it? In other words, how do I tell WFlow to generate the OF case with those geometries?

[LVDH]

OK, apparently I have to make the instructions clearer, but this will not happen the next days.
The last time I used a Windows 7 computer I hit Alt+F1 and then typed "cmd" that opened the command window. Maybe you could also navigate in the Explorer to your MantiumWFlow folder and a right click menu or something has an option like "open command window here"?

But there is a big surprise coming from HP-Racing soon that will make the work with MantiumWFlow much easier.

[CAEdevice]

Yeah, I've got that folder structure. What shall I do with it? In other words, how do I tell WFlow to generate the OF case with those geometries?

I use a ".bat" file, but you can run it from the Windows shell with the right paths (I don't have the MVRC data with me, but I think that all is written in the txt)

[CAEdevice]

But there is a big surprise coming from HP-Racing soon that will make the work with MantiumWFlow much easier.

I hope this will be the only big surprise from HP Racing. I looked at their car recently and I think that it will be a stronger opponent next race.

[variante]

PS C:\Users\SANTECH> C:\Users\SANTECH\Desktop\MVRC_2016\WFLOW\WFlow\MantiumWFlow_MVRCed_win.exe
Traceback (most recent call last):
  File "<string>", line 42, in <module>
IndexError: list index out of range
MantiumWFlow_obfs returned -1
PS C:\Users\SANTECH>

[CAEdevice]

Where is you "input_files" directory?

[variante]

Where is you "input_files" directory?

Simply on the desktop. Why? Shouldn't I specify its location after opening the program?

[CAEdevice]

I am relying on my memory, but:

- Assuming that "input_files" is in C:\Users\Matteo
- Assuming that WFlow executable is in C:\Users\Matteo\WFlow

I would use (more or less) this commands:

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cd C:\Users\Matteo\WFlow
MantiumWFlow_MVRCed_win.exe C:\Users\Matteo

(WFlow needs to know where the geometry is)

[RicME85]

Needs to be in a directory that you dont need permissions for, Windows can be funny with the desktop folder.
I followed the PDF for getting the test case running so I have a folder in my C drive called CFD - c:\CFD\Ricme
Within that I then put a folder with the name of the car (as suggested in the Readme something that relates to the version) - Ricme - Car - 01
In there I have the input_files folder with the relevant folders and files within.
I have another folder called MVRC which has the MFlow files in.
To get a command window I open the directory so I can see the files 'MantiumWFlow_MVRCed_win' etc then if you hold SHIFT and RIGHT CLICK in the window it will give you the option to 'Open command window here' which will open a CMD window in that directory.
From there its easy enough to copy and paste the various commands.

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MantiumWFlow_MVRCed_win.exe C:\CFD\ricme\RicME_Car_01 

Next its a case of running 'OpenFOAM_Start' that you got after setting up in the beginning (I put the shortcuts fr OpenFOAM in the MVRC folder for keeping things together and neat.

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cd workingDir
• cd Ricme - Car - 01
• bash runCase.sh

Then once done its back to the MVRC folder to open a command window again (unless you kept the first one open)

Code: Select all

MantiumWFlow_ppCase_simple_win.exe  C:\CFD\ricme\RicME_Car_01